shinfin™ ~ streamlined kick

~ streamlined feet
feet and ankles stay relaxed and flexible

~ horizontal, streamlined legs
legs lift horizontal, without bent knees, for low drag

~ streamlines upper body too
streamlined stroke for freestyle, fly and backstroke

~ optimise your streamline
adjust fin position on leg to optimise streamline

~ efficient streamline teaching
fin flex and movement teaches a streamlined kick

Swimmers and coaches know that foot flippers lower your legs, cause too much knee-bend and restrict your ankle and foot movements. This often leads to a degraded "bicycle-kick" with poor streamlining – a bad technique that stays with you even after you take foot flippers off. Foot flippers are not adjustable to match your kick, and often work against the teaching of efficient streamlined swimming.